Answer:
-2x and 4x
8yz and -21yz
-25 and 17
[tex]x^{2}[/tex] and 12[tex]x^2[/tex]
-3xy and -5xy
5y and 3y
Step-by-step explanation:
Like terms are terms with the same variables and powers.
Which basically means...
Terms with x in them can only match with other terms with only x in them, such as -2x and 4x, but they can't match with other terms with other variables that are not x such as -2x can't match with 3y, because there's nothing common (alike) between them.
